Is it possible to use OpenGL ES on iOS through RubyMotion?

Question

I know RubyMotion is relatively new, but I'd like to find out if it's possible/easy to use OpenGL ES with it before I buy a license to make an iOS game I've been planning for a while.

The reason I'm wondering is that I understand RubyMotion wraps all the Cocoa/Objective-C stuff but OpenGL on iOS is a set of C functions (glBegin(), glEnd(), etc.)

If anyone that purchased RubyMotion could help me out in finding out or point me to a piece of documentation, I'd be extremely grateful. Thank you.

Answer 1

Yes, it is. The official site says so.

Interfacing with C

You do not need to be a C programmer in order to use RubyMotion, however some basic notions, explained in this section, will be required. Objective-C is a superset of the C language. Objective-C methods can therefore accept and return C types. Also, while Objective-C is the main programming language used in the iOS SDK, some frameworks are only available in C APIs. RubyMotion comes with an interface that allows Ruby to deal with the C part of APIs.

Answer 2

Yes.

They have a working demo in the RubyMotionSample project https://github.com/HipByte/RubyMotionSamples/tree/master/HelloGL